Wall system comprising at least one panel and at least one connecting means, and method for producing a panel of a wall system

Abstract

The invention relates to a wall system (1) comprising at least one panel (2) and at least one connecting means (3), wherein the panel (2) has a decorative face (21) and a rear face (22) which is opposite the decorative face (21), wherein the decorative face (21) projects laterally beyond the rear face (22) in at least one projection region and, in the projection region, a laterally open groove (23) is arranged in the rear face (22) and / or between the decorative face (21) and the rear face (22), wherein the connecting means (3) comprises at least one limb (31) and at least one retaining means (32) which extends at an angle to the limb (31), wherein the retaining means (32) is placeable in the groove (23), wherein at least some regions of the groove (23) are rounded on the base side, and at least some regions of the retaining means (32) are rounded at the ends. The invention further relates to a method for producing a panel (2) for a wall system (1).

Description

[0001] 'Wall system comprising at least one panel and at least one connecting means and manufacturing method for a panel of a wall system'

[0002] The invention relates to a wall system comprising at least one panel and at least one connecting means according to claim 1 and to a method for producing a panel for a wall system according to claim 14.

[0003] Wall systems for creating a new wall or for cladding an existing wall are known from the prior art. DE 10 2019 1 16 819 A1 discloses a wall system consisting of several panels, with a rectangular groove in the sides of the panels. The outer side of the panel, which is visible when installed, is larger than the inner side of the panel, which is no longer visible when installed. This allows at least one anchoring part, which is adapted to the groove and has a rectangular design, to engage in the groove on the back and thus fix the panel. A disadvantage of this wall system, however, is that liquid can accumulate in the groove, which freezes into ice and expands when there is frost. This causes the groove in the panel to burst open and damage the wall system.Another problem is that when multiple panels are used, the wall system cannot compensate for vibrations, and the panels become stressed, which can lead to their destruction. These movements can be caused primarily by natural phenomena, such as minor earthquakes and / or wind, but can also have other causes, such as traffic and / or construction work. Another problem is that only small forces can be absorbed, resulting in a too low moment of resistance.

[0004] There is therefore a great need for a wall system that can be used safely and reliably in all weather conditions, especially in temperatures below freezing, in the presence of rain and / or snow, and in the presence of vibrations, while simultaneously ensuring quick, simple, reliable, and easy replacement, maintenance, and / or repair of the individual components. Furthermore, the wall system should be cost-effective to manufacture, durable, and individually adaptable to the existing wall and / or the wall to be clad. The invention therefore sets itself the task of providing a wall system to overcome the aforementioned difficulties.

[0005] This object is achieved in a surprisingly simple but effective manner by a wall system according to claim 1 and a manufacturing method according to claim 14.

[0006] According to the invention, a wall system is proposed, the wall system comprising at least one panel and at least one connecting means, the panel comprising a decorative side and a rear side opposite the decorative side, the decorative side projecting laterally beyond the rear side in at least one overlapping region and a laterally open groove being arranged in the overlapping region in the rear side and / or between the decorative side and the rear side, the connecting means comprising at least one leg and at least one holding means bent towards the leg, the holding means being able to be placed in the groove. The wall system is characterized in that the groove is rounded at the bottom and the holding means is rounded at least in some regions at the end.

[0007] The basic idea of ​​the invention is, on the one hand, to prevent fluid from accumulating in the groove and, on the other hand, to allow the connecting means and the panels to shift against each other to a small extent. Due to the rounded design of the groove and the holding means, at least in some areas, the water cannot accumulate in the groove at the bottom, but rather runs off like a gutter. Furthermore, a certain amount of play is possible between the groove and the holding means, so that any accumulated fluid can flow through between the connecting means and the groove. Panels and connecting means can also shift against each other during vibrations, so that the panels are not subjected to tension.

[0008] When installed, the panel forms a surface that is the actual wall of the wall system. For this purpose, the panel has a decorative side that is intended to be visible from the outside when installed and which is preferably visually appealing. According to the invention, the panel is a flat and closed panel that can have any shape. Shapes that allow parquetry are particularly preferred. More preferably, the panel is flat to form a flat or straight wall; however, another shape, in particular a curved one, is conceivable, resulting in a differently shaped, in particular a curved or round, wall. Naturally, the panel has a back side opposite the decorative side.

[0009] In order to give the panels the stability they need to form the wall, the wall system includes the connecting element. So that the connecting element can hold the panels, the laterally open groove is arranged, preferably all the way around, at least in the overlap area on the back and / or between the decorative side and the back. This means that the laterally open groove is introduced into a side surface connecting the decorative side and the back in the overlap area, specifically in the part of the side surface formed by the back wall. The laterally open groove can be spaced from the decorative side so that it is arranged on the back, or it can be adjacent to the decorative side so that it is arranged on the back between the back and the decorative side.Finally, it is also conceivable that an intermediate plate is arranged between the back and the decorative side, which is projected over in the overlap area of ​​the decorative side and the back and has a concave edge, so that the groove is formed between the decorative side and the back.

[0010] The connecting means comprises at least one leg and at least one holding means bent towards the leg. The connecting means can be designed in one or more parts and can be made of any material suitable for the required force-transmitting stability. It is conceivable for the connecting means to be made of one material or of several materials, such as, but by no means exclusively, metal, an alloy, plastic, wood and / or a mixture thereof. It is thus conceivable for the holding means and the leg, as well as the corresponding other elements of the connecting means, to be made of different materials. The connecting means is placed with the holding means in the groove of the panel.Since the leg is bent towards the holding means, the connecting means can be arranged in such a way that the leg protrudes laterally past the back and at the rear over the back and can be connected to a suitable structure.

[0011] Because the decorative side projects beyond the rear side, at least in the overlapping area, the decorative side conceals the connecting means, and the connecting means is not visible in the installed state when the wall system is viewed from the decorative side according to the invention. The rear side serves to facilitate the introduction of the groove into which the connecting means engages. Particularly preferably, the leg and the retaining means are beveled to one another at an angle between 70° and 110°, even more preferably at an angle of at least 75°, 80°, 85°, 90°, 95°, 100°, or 105°.

[0012] It is conceivable for the groove to be arranged laterally at specific points or continuously. Furthermore, it is conceivable for at least two, three, four or five identically or differently designed overhanging areas with two, three, four or five grooves to be present on one side, with two, three, four or five identically or differently designed connecting means engaging in each case. It is also conceivable for the overhanging area and the groove to extend over the entire width of the side surface, and for at least two, three, four or five identically or differently designed connecting means to engage in the groove. It is also conceivable for an overhanging area to be arranged on two, three, four, five, six, seven, eight, nine, ten or more side surfaces, in particular on all side surfaces. In particular, it is conceivable for one side surface of the panel to form a standing surface, wherein no overhanging area is arranged on the standing surface.This means that the decorative side does not extend beyond the back of the stand. Rather, the decorative side and back are the same length on the side forming the stand.

[0013] To provide additional support for the panel, it is preferred that two, three, four, five, six, seven, eight, nine, ten or more identically or differently designed connecting means are arranged laterally in the groove. Most preferably, an overlapping region is formed in each lateral side surface of the panel, in which a groove is arranged, preferably circumferentially. It is particularly preferred if at least two connecting means engage on each side surface. The term "rounded at least in regions" refers to at least one rounding of the corners and / or the end edge of the holding means or the base and / or the base corners of the groove and / or regions thereof. The rounding can affect regions of the aforementioned or, preferably, extend across the entire width of the end edge or the base or, more preferably, be limited to the end corners or base corners.Further preferably, the rounded corners and / or the end edge of the retaining means, or the base and / or the bottom corners of the groove, taper to a point at least partially or completely, thus forming a guide for the retaining means. This means that they are preferably V-shaped in side view.

[0014] The invention makes it possible to provide a wall system that can withstand even extreme climatic conditions, such as frost and earthquakes, and can also be easily and quickly adapted to the existing wall and / or the wall to be clad. Furthermore, it has proven advantageous that the inventive design and adaptability of the connecting means to the required conditions allow for higher forces to be absorbed, thus advantageously resulting in a very high section modulus of the wall system.

[0015] Advantageous further developments of the inventions, which can be implemented individually or in combination, are presented in the subclaims.

[0016] It is conceivable for the retaining means to be a cone, with the wider end of the cone being arranged on the leg. This allows for play not only in one or two spatial directions, but in all three spatial directions. Alternatively, to achieve the same advantage while reducing weight, it is conceivable for the retaining means to be flat, with the retaining means having a conical cross-section, with the wider end of the conical cross-section being arranged on the leg. The leg can also be flat.

[0017] The term “conical cross-sectional shape” refers to the shape that results when a cone is cut along the center line perpendicular to the base.

[0018] In a further development of the invention, it is conceivable for the connecting means to have at least two holding means, wherein the two holding means are arranged at the same end of the leg and point in different, preferably opposite, directions. In this way, a second panel can be arranged adjacent to a first panel, wherein the first panel and the second panel each have at least one overlapping area with a laterally open groove and at least partially rounded at the bottom on the side surfaces where they are arranged together, and wherein the overlapping area of ​​the first panel and the overlapping area of ​​the second panel are arranged opposite one another. The first of the holding means of the connecting means engages in the groove of the first panel, and the second of the holding means, which points in a direction different from the first of the holding means, engages in the groove of the second panel.In this way, both panels can be secured adjacent to one another by a connecting element. In this way, the wall system can be expanded modularly as required and cover a correspondingly larger area. On panels that form a lateral closure of the wall system, a connecting element with only one holding element can also be arranged on the outer side surface. Particular preference is given to using two, three, four, five, six, seven, eight, nine, ten, twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety, one hundred or more different and / or identically designed panels. Particular preference is given to arranging two, three, four, five, six, seven, eight, nine, ten or more identically or differently designed connecting elements with two legs between two panels.It is also conceivable that the connecting means do not form a 180° angle with each other and, in particular, a 90° angle with the leg. In this way, the panels can form an edge, in particular a corner, in the wall system. Particularly preferably, the retaining means form a 90° angle with each other and a 45° angle with the leg in order to form a 90° edge in the wall system. It is conceivable that the sides of the panels, including the side surfaces of the decorative side and the back, are beveled, preferably beveled by 45°, to form the edge.

[0019] Furthermore, it is conceivable for the connecting means to have at least two holding means, wherein the holding means are arranged at opposite ends of the leg. In this way, two panels can be connected to one another, wherein the rear sides of the two panels face each other. In this way, a free-standing wall can be created. The connecting means is then preferably T-shaped, even more preferably double-T-shaped. Particularly preferably, the two panels, which are arranged with their rear sides facing each other, are spaced apart from one another such that a hollow space remains between them. It is further preferably conceivable for the connecting means to comprise at least four holding means, wherein two of the holding means are arranged at opposite ends of the leg and the two holding means arranged at the same end of the leg point in different, preferably opposite, directions.In this way, two panels can be arranged with their backs facing each other, and a wall system can be formed as a freestanding wall of any size. In other words, the freestanding wall can be scaled to any size by arranging more panels of the same or different design on both sides with appropriately designed connecting elements. Furthermore, it is also conceivable for the connecting element to comprise additional retaining elements that are not arranged on one side.

[0020] Alternatively, it is conceivable for the connecting means to comprise at least one anchoring element, wherein the anchoring element is arranged at an end of the leg opposite the holding means. The connecting means is attached to a correspondingly suitable structure by means of the anchoring element. This can be, in particular, but by no means exclusively, a wall to be renovated. It is also preferably conceivable for two holding means, which point in different, preferably opposite, directions, to be arranged at the end of the leg opposite the anchoring element.

[0021] It is further conceivable for the connecting means to comprise at least two legs, wherein the two legs are connected by at least one cross-connection. A holding means can be arranged on one or both of the legs. In particular, it is conceivable for the connecting means to have at least two, three, four, five, six, seven, eight, nine or ten identically or differently designed legs, wherein at least one of the holding means is arranged on one of the legs and the legs are connected to one another by at least one cross-connection, preferably two, three, four, five, six, seven, eight, nine or ten identically or differently designed cross-connections. The additional legs and cross-connections serve to stabilize the wall system, since the legs and cross-connections can rest on the rear of the panels without holding means to form a rear support surface.In this way, twisting away from the connecting element is largely prevented.

[0022] In a further development, it is conceivable for the connecting means to comprise at least two holding means, wherein a first of the holding means is arranged on one of the legs and a second of the holding means is arranged on the cross connection. It is also conceivable for at least one holding means to be arranged on some or all of the at least two, three, four, five, six, seven, eight, nine, or ten legs and / or the at least one, two, three, four, five, six, seven, eight, nine, or ten cross connections.

[0023] Furthermore, it is conceivable for the leg to comprise at least two parts, with the two parts being continuously adjustable relative to each other. This allows the leg to be adjusted to any desired length. In this way, two panels arranged at opposite ends of the leg can be placed at any distance from each other, thus creating a wall of any thickness.

[0024] Furthermore, a panel can be mounted at any desired distance from a structural element to which the connecting element is anchored. Continuous adjustability is particularly preferably enabled by a first elongated hole in the first part and a second elongated hole in the second part of the leg, with the elongated holes being secured to one another by means of a suitable fixing means.

[0025] In a further development of the invention, it is conceivable for the connecting means, in particular the leg and / or the cross connection, to have at least one recess. The recess allows for the creation of a lightweight connecting means. This reduces the load on a structural element to which the connecting means engage. More filler can also be introduced, as described elsewhere. The filler can then adhere better to the connecting means or flow through it.

[0026] It is also conceivable for the panel to be one-piece, especially monolithic. A one-piece panel is characterized by simple manufacturing while maintaining high strength.

[0027] The term "one-piece" refers to a component that is manufactured as a whole through a single manufacturing process. In particular, two separate components are not manufactured and then joined together.

[0028] The term “monolithic” refers to a component that is made in one piece and from a single material, in particular homogeneous.

[0029] Furthermore, it is conceivable for the decorative side to have a thickness of 0.5 cm to 20 cm. On the one hand, the decorative side should be so stable that it does not break during manufacture and use according to the invention. On the other hand, small to medium damage should not immediately lead to an unsightly appearance of the decorative side. Preferably, the decorative side has a thickness of at least 0.5 cm, 1.0 cm,

[0030] 1.5cm, 2.0cm, 2.5cm, 3.0cm, 3.5cm, 4.0cm, 4.5cm, 5.0cm, 5.5cm,

[0031] 6.0cm, 6.5cm, 7.0cm, 7.5cm, 8.0cm, 8.5cm, 9.0cm, 9.5cm, 10.0cm,

[0032] 10.5cm, 11.0cm, 11.5cm, 12.0cm, 12.5cm, 13.0cm, 13.5cm,

[0033] 14.0cm, 14.5cm, 15.0cm, 15.5cm, 16.0cm, 16.5cm, 17.0cm,

[0034] 17.5 cm, 18.0 cm, 18.5 cm, 19.0 cm, or 19.5 cm. If the decorative side is 0.5 cm to 20 cm thick, it is sufficiently stable, and small chips on the decorative side do not expose parts of the back. The thickness can also refer to the depth of the coloring. At this thickness, the mold can also be removed without damage, as described elsewhere in the production process.

[0035] Furthermore, it is conceivable that the decorative side is made of concrete, cement, stone, in particular natural stone or a natural stone slab, metal, in particular a metal plate, wood, ceramic, plastic, and / or a mixture thereof. Furthermore, it is conceivable that at least one insert, in particular made of a metal, such as a metal plate, steel and / or an alloy, plastic, stone, wood, ceramic, and / or a mixture thereof, is arranged in the decorative side, but below the surface and thus not visible, to increase stability.

[0036] Furthermore, the at least one insert can serve to securely connect the decorative side and the back and can therefore be arranged between the decorative side and the back. It is particularly conceivable for the decorative side and the back to be made of the same material or of different materials. Furthermore, it is conceivable for the decorative side to be assembled from several parts to form a one-piece component, in particular by means of a material-to-material bond. In particular, it is conceivable for several stone slabs, several wooden slats, or several ceramic tiles to be arranged to form a closed surface on the decorative side.

[0037] It is also conceivable for the backing to be made of concrete and / or cement. These materials are flowable materials that can be poured into a mold for production from the backing, as described elsewhere. If the materials are not yet cured, a material bond with the materials of the decorative side can be easily achieved by bringing the materials of the decorative side into contact with the material of the backing while the backing material is not yet cured. Concrete and / or cement are also cost-effective, easy to handle, durable, and long-lasting.

[0038] In a further development, it is conceivable for the wall system to comprise a filler, wherein the filler is arranged on the back of the panels. Within the scope of the invention, it has been recognized that the wall system can create a cavity between the structures to which it is anchored or between the panels arranged on both sides to form a free-standing wall. This cavity can be used in a variety of ways, for example to create a ventilated facade. Alternatively, the cavity can be filled to increase stability and / or insulation. The filler is not visible in the installed state according to the invention and is protected from the weather. It is preferred that the filler comprises an insulating material, concrete, cement and / or clay. The insulating material serves to bring about greater thermal insulation, whereas concrete, cement and / or clay are intended to give the wall system additional stability in addition to greater thermal insulation.In particular, it is conceivable, as described elsewhere, that in an arrangement in which at least two panels are arranged with their rear sides facing each other, the wall system serves as a permanent formwork, wherein the cavity left between the rear sides is filled with a filler. In this case, it is preferred if the connecting means is narrow and / or perforated so that the filler, in particular the cement, concrete, and / or clay, can flow through these perforations and securely anchor the connecting means within the filler.

[0039] It is assumed that the definitions and / or the interpretations of the above terms apply to all aspects described below in this description, unless otherwise stated.

[0040] According to the invention, a method for producing a panel for a wall system, as described elsewhere, is further proposed. The method comprises the following steps: a. Providing a mold, wherein the mold has a recess with a first width, wherein the recess has a taper that is at least partially rounded in an area forming at least one projection area of ​​the panels on at least one side of the recess, and wherein an undercut with a second width is arranged below or above the taper, wherein the second width is smaller than the first width; b. Pouring in a first material, wherein the first material completely covers at least the undercut and the taper and wherein the first material forms at least one back side of the panels; and c. Removing the panels.To produce the panels according to the invention, a mold is necessary, wherein the mold must be designed such that the panel obtained from the mold comprises the decorative side and the back, wherein at least one overlapping region is formed in which the decorative side projects beyond the back, and wherein the laterally open groove is formed in the back and / or between the back and decorative side. For this purpose, the mold has the recess with a first width and an undercut below a taper with a second width. Since the second width is smaller than the first width, the part of the material which is filled into the recess and is arranged above or below the undercut projects beyond the part of the material which is filled into the undercut in the recess. The laterally open groove is formed by the taper, since the taper projects into the material when the material is filled.For this purpose, the taper must be rounded at least in some areas, so that a correspondingly rounded groove is formed. Particularly preferably, the taper is conical, so that a conical groove is formed.

[0041] At least the back and the groove cut out of the back are formed from the cast-in first material. The decorative side can preferably also be formed from the first material; the panel is then monolithic. More preferably, only the back is formed from the first material, with another material being necessary to form the decorative side; the panel is then one-piece, but not monolithic. The decorative side is produced by the material in the recess above or below the taper, while the back is formed by the material in the undercut and in the region of the taper. At the end of the production step, the panel must still be removed from the mold, for example by opening it, by using a suitable means such as a suction device or a lifting device, or by rotating it in such a way that the panel falls out of the mold.

[0042] In a further development, it is conceivable that in step b . before or after the pouring of the first material, a second material is poured or inserted. It is conceivable that the first material and / or the second material forms the decorative side. As described elsewhere, it is conceivable that the material of the decorative side is a different material than that of the back. This means that in a first step the back is formed using a first material by pouring it into the undercut and the taper, and in a subsequent step the second material is poured or inserted. This means alternatively that in a first step the second material is poured or inserted and in a subsequent step the back is formed using the first material by pouring it into the undercut and the taper. Whether the second material is poured in or inserted depends on the material selected.The first material is preferably concrete and / or cement. Even more preferably, the second material is metal, in particular a metal plate, an alloy, concrete, cement, stone, in particular natural stone or a natural stone plate, wood, ceramic, plastic, and / or a mixture thereof.

[0043] It is also conceivable that at least one insert is introduced into the intermediate layer between the first and second materials, which strengthens the bond between the first and second materials and / or provides the panel with greater overall stability. Particularly preferably, the at least one insert is made of a metal, such as a metal plate, steel and / or an alloy, plastic, stone, wood, ceramic, and / or a mixture thereof.

[0044] In a further development, it is conceivable that in step b, the first material is a hardening material, and the second material is poured or inserted before the first material hardens. This creates a material-to-material bond between the second material and the first material, making subsequent separation of the first material and the second material more difficult. Furthermore, it is conceivable to also insert the inserts described elsewhere into the not yet hardened first material. The resulting panel is then one-piece, but not monolithic.

[0045] Furthermore, it is conceivable for the mold to be multi-part and joinable, with the mold parts being joined together in step a. and the mold parts being separated in step c. In particular, due to the undercut, it is necessary for the mold to be at least partially removed laterally from the panel or for the panel to fall out by rotating the mold. For this purpose, it is preferred that a vertically removable inner wall, in particular the undercut, can be inserted loosely, optionally in multi-part form, into the preferably rigid mold. This is made possible with a multi-part mold, and the mold can be used multiple times. Particularly preferably, the mold comprises a removable wall, wherein the removable wall is laterally removable. Even more preferably, the mold comprises two, three, four, five or more removable walls of the same or different design.It is further preferably conceivable for the mold to comprise at least one vertically removable inner wall, wherein the inner wall extends from the upper edge of the mold to above the taper. The upper edge of the mold delimits the recess and enables the material to be poured in. Within the scope of the invention, it has been recognized that the wall which is laterally removable from the mold must not be detached from the mold by the weight or expansion processes during curing. In other words, the laterally removable wall must be removable against a force exceeding these forces, since otherwise the mold could fall apart during the manufacturing process. It has also been recognized that some of the preferred materials for forming the decorative side are pressure-sensitive. This applies in particular, but by no means exclusively, to wood and plastic.It is therefore not possible to use a lever tool at this point, as this would damage the panels. If the mold has at least one inner wall that can be removed vertically upwards, it is possible to pour the first material during production until it extends into the area of ​​the inner wall that can be removed vertically upwards. Once the panels have been manufactured, the inner wall that can be removed vertically upwards is first removed vertically or the mold is rotated so that the panel falls out. A lever tool can then be inserted into the gap created between the panel and the laterally removable wall, with the lever tool being applied to the hardened and more impact-sensitive first material. In this way, the laterally removable wall can be levered off the mold without damaging and / or stressing the second material on the decorative side.

[0046] Further details, features, and advantages of the invention will become apparent from the following description of the preferred embodiments in conjunction with the subclaims. The respective features can be implemented individually or in combination with one another. The invention is not limited to the embodiments. The embodiments are illustrated schematically in the figures. The same reference numerals in the individual figures denote identical or functionally identical elements, or elements that correspond to one another in terms of their function.

[0047] In detail:

[0048] Fig. 1 is a sectional view of a wall system according to the invention;

[0049] Fig. 2 is a side view of a panel according to the invention;

[0050] Fig. 3 is a perspective view of a connecting means according to the invention; and

[0051] Fig. 4 is a perspective view and a sectional view of a mold for the method according to the invention. Fig. 1 is a sectional view of a wall system 1 according to the invention. The wall system 1 comprises at least six panels 2 with a decorative side 21 and a back 22. The backs 21 of three of the panels 2 are arranged opposite one another, with the decorative sides 21 forming a closed wall surface on both sides, so that a free-standing wall is created. Two connecting means 3 are placed between the backs of the panels 2. The connecting means 3 have a leg 31. Two holding means 32 are arranged opposite one another at the ends, with the holding means 32 pointing in opposite directions. The holding means 32 have rounded ends and are placed in a groove 23 of the panels 2 that is rounded at the bottom and open at the sides. The groove 23 is arranged between the decorative side 21 and the back 22 of the panels 2.The connecting element 3 engages from the back.

[0052] 22 into the groove 23. To enable this, the decorative side 21 projects beyond the opposite rear side 22 at least in an overhanging region in which the laterally open groove 23 is arranged. Because the holding means 23 are arranged at opposite ends of the leg 31, the freestanding wall can be formed. The connecting means 3 arranged at the top in Fig. 1 comprises a recess 34. Furthermore, a filler 4 is arranged on the rear sides 22 of the panels 2, which filler also fills the recess 34 of the leg 31 of the upper connecting means 3. The filler 4 can be a building material, such as an insulating material.

[0053] Fig. 2 shows a side view of a panel 2 according to the invention. The panel differs from the embodiment shown in Fig. 1 in that the groove 23 is arranged in the rear side 22. The decorative side 21 is offset from the rear side 22 and projects beyond it. The groove

[0054] 23 is arranged circumferentially on the rear side 22. The groove 23 is rounded at the bottom and has a conical cross-section. The rounding of the groove 23 extends over the entire bottom of the groove 23. Fig. 3 shows a perspective view of a connecting means 3 according to the invention. The connecting means 3 shown in Fig. 3 also differs from the embodiments shown in Fig. 1. The connecting means 3 has two legs 31 which are connected to one another by two cross connections 33. A recess 34 is arranged in each of the cross connections 33. On the leg 31 shown at the top in Fig. 3, two holding means 32 are arranged on each side, which point in opposite directions. On the cross connections 33, two holding means 32 pointing in opposite directions are also arranged on both sides. The connecting element 3 is designed to be flat.

[0055] Fig. 4a shows a perspective view of a mold 5 for the method according to the invention, and Fig. 4b shows a sectional view of the mold 5 for the method according to the invention. The mold 5 comprises a recess 51 into which the material or materials for producing a panel 2 according to the invention (see Fig. 1, Fig. 2) is or are later introduced. The recess 51 has a first width 52. Below this, a taper 53 is arranged, which will later form the groove 23 of the panel 2. For this purpose, the taper 53 is rounded at the end. Below the taper 53 there is an undercut 54 with a second width 55. The second width 55 is smaller than the first width 52. The later back 22 of the panel 2 is produced in the taper 53.The mold 5 is designed in several parts and can be assembled before the method according to the invention and disassembled after production of the panels 2, so that the resulting panel is easy to remove. In particular, the inner walls 56 including the undercut 54 can be removed upwards out of the recess 51 in order to release a leverage point on the side of the finished panel 2. The inner wall 56 extends from the upper edge of the mold 5 to above the taper. The inner walls 56 are arranged on laterally removable walls 57, which can be removed laterally using the lever tool. Alternatively, the panel 2 with the undercut 54 can be removed from the opposite side of the opening 51 using a suitable means, such as a suction device or a lifting device, if the side of the opening 51 is closed and the formwork floor is on this side.The formwork removal process then takes place via the opposite side. During this process, the inner wall 56 can remain in the mold 5, for example, during suction or lifting. However, it can also be inserted loosely and fall out of the mold 5 with the panel 2 and the undercut 54, particularly when the mold 5 is rotated, as shown in Fig. 4b, and the product slides downward out of the mold 5. Alternatively, the mold 5 is rotated such that the panel 2 falls out.

Claims

Patent claims Wall system (1) comprising at least one panel (2) and at least one connecting means (3), wherein the panels (2) have a decorative side (21) and a decorative side (21 ) opposite rear side (22), wherein the decorative side (21) projects laterally beyond the rear side (22) in at least one projecting area, and a laterally open groove (23) is arranged in the projecting area in the rear side (22) and / or between the decorative side (21) and the rear side (22), wherein the connecting means (3) comprises at least one leg (31) and at least one holding means (32) bent towards the leg (31), wherein the holding means (32) can be placed in the groove (23), characterized in that the groove (23) is rounded at the bottom and the holding means (32) is rounded at the end at least in regions. Wall system (1) according to claim 1, characterized in that the holding means (32) is a cone, wherein the wider end of the cone is arranged on the leg (31). Wall system (1) according to claim 1, characterized in that the holding means (32) is designed to be flat, wherein the holding means (32) has a conical cross-sectional shape, wherein the wider end of the conical cross-sectional shape is arranged on the leg (31) Wall system (1) according to one of claims 1 to 3, characterized in that the connecting means (3) has at least two holding means (32), wherein the holding means (32) are arranged at the same end of the leg (3 1 ) are arranged and point in different, preferably opposite, directions. Wall system ( 1 ) according to one of claims 1 to 4, characterized in that the connecting means (3) has at least two holding means (32), wherein the holding means (32) are arranged at opposite ends of the leg (3 1 ). Wall system ( 1 ) according to one of claims 1 to 4, characterized in that the connecting means (3) comprises at least one anchoring element, wherein the anchoring element is arranged on a holding means (32) opposite end of the leg (31). Wall system (1) according to one of claims 1 to 6, characterized in that the connecting means (3) comprises at least two legs (31), wherein the two legs (31) are connected by at least one transverse connection (33). Wall system (1) according to claim 7, characterized in that the connecting means (3) comprises at least two holding means (32), wherein a first of the holding means (32) is arranged on one of the legs (31) and a second of the holding means (32) is arranged on the transverse connection (33). Wall system (1) according to one of claims 1 to 8, characterized in that the leg (31) comprises at least two parts, wherein the two parts are continuously adjustable relative to one another. Wall system (1) according to one of claims 1 to 9, characterized in that the connecting means (3), in particular the leg (31) and / or the transverse connection (33), has at least one recess (34). Wall system (1) according to one of claims 1 to 10, characterized in that the panel (2) is in one piece, in particular monolithic. Wall system (1) according to one of claims 1 to 11, characterized in that the decorative side (21) has a thickness of 0.5 cm to 20 cm. Wall system (1) according to one of claims 1 to 12, characterized in that the decorative side (21) is made of concrete, cement, stone, metal, wood, ceramic, plastic and / or a mixture thereof.Wall system (1) according to one of claims 1 to 13, characterized in that the back (22) is made of concrete and / or cement. Wall system (1) according to one of claims 1 to 14, characterized in that the wall system (1) comprises a filler (4), wherein the filler (4) is arranged on the back (22) of the panels (2). Wall system (1) according to claim 15, characterized in that the filler (4) comprises an insulating material, concrete, cement and / or clay. Method for producing a panel (2) for a wall system (1) according to one of claims 1 to 16, comprising the following steps: a.Providing a mold, wherein the mold has a recess (51) with a first width (52), wherein the recess (51) has, in an area forming at least one projection area of ​​the panels (2), a taper (53) which is at least partially rounded on at least one side of the recess (51), and wherein an undercut (54) with a second width (55) is arranged below or above the taper (53), wherein the second width (55) is smaller than the first width (52); b. Pouring in a first material, wherein the first material completely covers at least the undercut (54) and the taper (53), and wherein the first material forms at least one rear side (22) of the panels (2); and c. Removing the panels (2). Method according to claim 17, wherein in step b., a second material is poured in or inserted before or after the first material is poured in.

19. The method according to claim 18, wherein in step b. the first material is a hardening material, and the pouring or inserting of the second material occurs before the first material hardens.

20. The method according to any one of claims 17 to 19, wherein the mold is multi-part and can be joined together, and in step a. the mold parts are joined together, and in step c. the mold parts are separated.

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